Colouring one's hair has become one of the most sought-after services in salons. It can basically transform how you look in a matter of just an hour or two. One of the common materials used in doing so is the foil. Today, you will know how to use foils when colouring hair. First, the Preparations Before you begin the actual colouring of your hair, you need to make some preparations. This means that you should get all the materials you require, such as foils, dyes, and other hair colour formula. It is very important that you are picky with the products that you are going to choose. Some dyes do not hold longer, so the colour gets washed away after a few days. There are also others that are harsh on the hair and scalp. You also have to rid your hair with any chemicals and minerals, like the ones you get from chlorinated water. They may cause adverse chemical reactions to your hair products or prevent the dye from working properly. Using the Foil The foil is actually used to properly